| ID | 10428 |
| Thumbnail | |
| Cat Number | 2121a |
| Variety | f1 |
| Description | Lightning Whelk |
| Series | Seashells |
| Denomination | 22ยข |
| Color | Black, Multicolored |
| Separation Method | PF |
| Extent Perf Die Cut | 2,3 |
| HPerf | 10.00 |
| VPerf | 10.00 |
| Tagging | Block |
| Tagging Color | |
| Paper Type | |
| Adhesive | WA |
| Gum Type | S |
| Format | B |
| EFO | F |
| Watermark | unw. |
| Specialfeatures | vert. strip of 5; block tag shifted left & somewhat down |
| Printing Type | engraved |
| Stamp Date | ---- |
| Printer Engraver | |
| Issue Year | 1985 |
| Image1 | |
| Issue Date | 4/4/1985 |
| Quantity Issued | |
| Visible | Yes |